\begin{appendices}

\section{DFA for the RSHC Protocol}
\label{app:dfa}

\begin{figure}[h]
  \centering
  \includegraphics[width=4.95in]{figures/dfa.pdf}
  \caption{DFA illustration for the RSHC protocol.}
  \label{fig:dfa:dfa}
\end{figure}

\end{appendices} 